What are the 4 classes of organic molecules and their functions?

Lipid, carbohydrates, nucleic acid, proteins. Lipids store energy, and may be broke down to yield large amounts of energy. Carbohydrates provide energy to the body particularly through glucose (sugar). Nucleic acid have to do with storage and expression of genetic information. Proteins do most of the work in the cells, and required for the structure, function, and regulation of body’s tissues and organs; and they assist with the formation of new molecules by reading the genetic information stored in DNA. (Sorry it’s so long wanted to get all the information)